King of England from 1100. Youngest son of William the Conqueror, he succeeded his brother William II. He won the support of the Saxons by granting them a charter and marrying a Saxon princess, Edith, daughter of Malcolm III of Scotland. She was known as Matilda after her marriage, a name more acceptable to the Norman Barons than her Saxon name Edith. Henry's daughter was also called Matilda. He was an able administrator, and established a professional bureaucracy and a system of travelling judges. He was called Beauclerc because of his scholarly interests.

In 1101 his elder brother Robert, Duke of Normandy, attempted to seize the crown by invading England. However, after the Treaty of Alton, Robert agreed to recognise his brother Henry as King and returned to Normandy. They fought again in 1106 at Battle of Tinchebrai at which Robert was captured and Henry became Duke of Normandy as well as King of England. Henry's only legitimate son and heir, William, was drowned in 1120 in wreck of the White Ship and Henry tried to settle the succession on his daughter Matilda and her son Henry (later Henry II). However, Matilda widow of Henry V, Holy Roman Emperor, was unpopular when she re-married into the House of Anjou rival of the House of Normandy. The throne was taken by Henry's nephew Stephen, who, towards the end of his reign, agreed to adopt Matilda's son as his heir.

Henry died in Normandy in 1135 of food poisoning according to legend from eating a 'surfeit of Lampreys' (an eel type fish).

Henry marries Edith known as Matilda, daughter of Malcolm III of Scotland.

1101

Robert of Normandy invades England in an attempt to wrest the English throne from his brother, Henry. After failing, he signs the Treaty of Alton, which confirms Henry as King of England and Robert as Duke of Normandy.

1106

War breaks out between Henry and Robert. Henry defeats Robert at the Battle of Tinchebrai, imprisons him in Cardiff Castle, and takes control of Normandy.

1118

Death of Henry's wife Matilda.

1120

Henry's son and heir, William, is drowned at sea when returning from Normandy in The White Ship which strikes a rock and sinks. Henry’s daughter, Matilda, becomes heir.

1121

Henry marries Adelicia of Louvain

1126

Henry persuades the barons to accept Matilda as his lawful successor to the throne.